Finding the Fourth Proportional to 221,344.17, 331,819.01 and 81,069.99
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Solution
The fourth proportional to 221,344.17, 331,819.01 and 81,069.99 is: 121,532.74
Step by Step Solution
- Step 1: Write the proportion equation
221,344.17 : 331,819.01 = 81,069.99 : x - Step 2: Convert to fraction form
221,344.17/331,819.01 = 81,069.99/x - Step 3: Cross multiply
221,344.17x = 331,819.01 × 81,069.99 - Step 4: Simplify right side
221,344.17x = 26,900,563,822.51 - Step 5: Solve for x
x = 26,900,563,822.51/221,344.17 - Step 6: Final answer
x = 121,532.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.